I like this one better. It explains how it only costs Iraq $130 to exchange 10,000 dinar.

Simply put, it cost Iraq $130 USD from their foreign currency reserve accounts to redeem the value of 10,000 IQD, which goes into their operating accounts. At the same time the US got $10,000 worth of oil for a net cost of $6,500. Thats how it was originally planned for Iraq to RV at 1 IQD = 1 USD, with the variable being the political element (i.e. UN Sanctions, GOI actions, IMF actions, World Bank actions etc.)